Obsolete Concepts (Special Relativity)

Special relativity has undergone several changes in its history, and some concepts have fallen out of use with time. For example the relativistic mass has been abandoned in favor of having invariant rest mass and variable energy and momentum.

Links:

1. Wikipedia — Relativistic mass — History of the relativistic mass concept

Contents:

• Relativistic mass via rest mass and speed
  • relativistic_mass
  • rest_mass
  • speed
  • law